Phylum Bryozoa

15 Questions | Total Attempts: 71

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Phylum Quizzes & Trivia

The majority of this quiz is of multiple-choice format with some true-false at the end. The answers to these questions are found throughout the reading of the Bryozoa website. Please answer the best choice possible for each question.


Questions and Answers
  • 1. 
    A zooid is known as:
    • A. 

      A complete individual

    • B. 

      A group of asexually produced and physically unified components

    • C. 

      A reproductive structure

    • D. 

      A feeding structure

  • 2. 
    In most of the species the muscular __________ can be found just below the orifice
    • A. 

      Cystid

    • B. 

      Diaphragm

    • C. 

      Zooecium

    • D. 

      Polypide

  • 3. 
    Colonies are found to be either _______ and _______ or _______and _______.
    • A. 

      Big and wide or small and narrow

    • B. 

      Sharp and pointy or round and smooth

    • C. 

      Brown and white or dark red and white

    • D. 

      Branched and rigid or flat and encrusted

  • 4. 
    Funicular cords are:
    • A. 

      Strands used for locomotion

    • B. 

      Thick mesenchymal cables that create tissue connections among the individual colonies

    • C. 

      Structures for disposing of waste and can also be used for catching prey and nutrients

    • D. 

      Reproductive structures

  • 5. 
    The nervous system of bryozoans is
    • A. 

      Ring shaped

    • B. 

      Adjacent to the pharynx

    • C. 

      Either specifically ganglionated or not

    • D. 

      All of the above

  • 6. 
    Monomorphic colonies of phylactolaemates means that
    • A. 

      The zooids are all morphologically identical

    • B. 

      The zooids are all attached to each other in some way

    • C. 

      The colonies are all morphologically identical

    • D. 

      The colonies are all attached to each other in some way

  • 7. 
    The epistome of phylactolaemates is refer to as
    • A. 

      The tongue like structure within the mouth

    • B. 

      A flap of tissue hanging down over the mouth

    • C. 

      A hollow funiculus

    • D. 

      A muscle within the stomach used for digestion

  • 8. 
    Floatoblasts of the phlyactolaemata species are
    • A. 

      Are buoyant due to gas-filled calls

    • B. 

      Glued to a solid surface or structure

    • C. 

      Can actually be spread relatively large distances by wind, water, or animals

    • D. 

      A & c

    • E. 

      B & c

  • 9. 
    Orders Ctenostomata and Cheilostomata belong to the
    • A. 

      Class Stenolaemata

    • B. 

      Class Phylactolaemata

    • C. 

      Class Gymnolaemata

    • D. 

      Class Echiura

  • 10. 
    Heterozooids are known as
    • A. 

      The oldest colony members

    • B. 

      The most current colony members

    • C. 

      The non-feeding colony members

    • D. 

      The feeding colony members

  • 11. 
    Species within the Class Stenolaemata are
    • A. 

      Entirely freshwater

    • B. 

      Mostly freshwater

    • C. 

      Entirely marine

    • D. 

      Mostly marine

  • 12. 
    True or False - The ability to generate and regenerate is an essential and fundamental quality of the bryozoan life cycle.          
    • A. 

      True

    • B. 

      False

  • 13. 
    True or false - In all Phylactolaemate species the lophophore is O-shaped
    • A. 

      True

    • B. 

      False

  • 14. 
    True or False - The majority of gymnolaemata bryozoans' zooecia calcify to varying extents.
    • A. 

      True

    • B. 

      False

  • 15. 
    True of False - Cyclostome zooids are known to always be flat, in addition to the zooecia remaining entirely uncalcified.  
    • A. 

      True

    • B. 

      False